The Princess is wearing a pink suit designed by fashion designer Paul Costelloe (Photo by Tim Graham/Getty Images) After her 1981 wedding, Diana became a mould breaker and stepped away from traditional royal styling.
There were no tiaras or gloves for the Princess, and she strategically used colour - especially if she knew she would be surrounded by men in black suits and wanted her dress to 'pop' for the cameras.
With time, Diana developed a confidence in her dressing.
"A number of outfits ended up in charity shops, and we've actually bought items from auction that were disposed of in a black bin bag from Sandringham.
We tracked down the provenance because they were one-offs made specially for Diana," explains Eleri.
Diana knew her strengths and she knew the people who could help her achieve her goals, especially as her fairy-tale marriage crumbled and she forged a career in humanitarian work.
She has been accused of being manipulative with the press, feeding them stories at strategic times to annoy the royals.
She poured over newspapers and magazines and clearly read the reviews.